victronconnect:mppt-solarchargers
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victronconnect:mppt-solarchargers [2019-09-04 14:44] – tabreu | victronconnect:mppt-solarchargers [2019-11-08 12:02] – [4.3 Streetlight settings] mvader | ||
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(If you are operating an [[http:// | (If you are operating an [[http:// | ||
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+ | It is possible to export the history by clicking the three connected dots at the top right of the history screen. | ||
**Battery Voltage**\\ | **Battery Voltage**\\ | ||
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==== 4.3 Streetlight settings ==== | ==== 4.3 Streetlight settings ==== | ||
- | {{: | + | {{: |
- | The Streetlight function allows you to automatically control night lighting - it's duration, and brilliance. When the Streetlight function is enabled a timer program can be created whereby | + | === Introduction === |
+ | The Streetlight function allows you to automatically control night lighting - it's duration, and brilliance. When the Streetlight function is enabled a timer program can be created whereby | ||
+ | === Streetlight, | ||
+ | |||
+ | For our smaller chargers, that have a set of dedicated load output terminals, the light can be powered from those terminals. For larger chargers, the TX can be used, as a ' | ||
+ | |||
+ | Note that, both for the real load output, and TX pin or Relay as ' | ||
+ | |||
+ | If streetlight is disabled, then the (virtual) load output is controlled only by the configuration as made in the load output menu. | ||
+ | |||
+ | If streetlight is enabled, then its an AND function: the load output will be on when both the condition made in the Load output menu are satisfied as well as the streetlight settings. Otherwise, its off. | ||
+ | |||
+ | Therefore, in a streetlight application, | ||
+ | |||
+ | === Setting the Sunset action === | ||
At sunset you can choose from the following actions: | At sunset you can choose from the following actions: | ||
- | | + | |
- | | + | |
- | | + | |
- | | + | |
+ | |||
+ | < | ||
+ | |||
+ | === Setting the Sunrise action === | ||
At sunrise you can choose to: | At sunrise you can choose to: | ||
- | | + | |
- | | + | |
- | **FOR EXAMPLE:** | + | === Midnight is Solar midnight, and not 12 o' clock === |
- | The selections which have been made on the iPhone screen image above (please click image for expanded view) will have the following effect on the Streetlight controls: | + | |
- | *//At sunset// - the light will be switched on for a fixed time | + | The charger has no real time clock, and does not know when it is 12 o' clock at night. All references to midnight refer to what we call solar midnight: |
- | *//Dim level at sunset// - at Full brilliance (100%) | + | |
- | *//Keep lights on during// - the duration has been set to 1h 0m | + | |
- | *//Dim level at end// - at the end of one hour the brilliance will be reduced to half (50%) | + | |
- | Also; | + | === Midnight and Sunrise synchronisation === |
- | *//At sunrise// - the lighting will be adjusted before sunrise | + | |
- | *//Time before sunrise// - at 1h 0m before sunrise, the following adjustment will be made: | + | |
- | *//Dim level// - full brilliance will be restored (100%) | + | |
+ | The (solar-) midnight and sunrise anchor points in the timer program need the charger to have its internal clock synchronised with the cycle of the sun. | ||
- | NB: This dim-levels menu only appears when the TX port function | + | After making your settings and powering up the charger, the charger will start unsynchronised: it assumes that midnight is 6 hours after sunset, and assumes that the full night is 12 hours. |
- | After making your settings | + | During synchronisation, |
- | The lighting controller | + | Note that a loss of power will make the charger loose its synchronisation; |
+ | === Sunset and sunrise detection === | ||
- | When entering a ' | + | The Sunset and Sunrise detection voltage settings |
+ | |||
+ | * Sunset = Vpanel < 11.4V | ||
+ | * Sunrise = Vpanel > 11.9V | ||
+ | |||
+ | The default setting is 0, which uses built-in default voltages. | ||
+ | |||
+ | Use the ' | ||
+ | |||
+ | === Gradual dimming speed === | ||
+ | The gradual dimming option can be used to slow down the response of the timer program. This is useful when multiple streetlights are used in a row, and helps to mask the fact that each timer uses its own detection and the transition moment which will vary from unit to unit. | ||
+ | |||
+ | The dimming settings can be adjusted. You can input the number of seconds required to achieve each percentage-point of change (x seconds/per 1% of dimming). The available setting parameters are 0 ...99 | ||
+ | |||
+ | * 0 = immediate response (gradual dimming disabled) | ||
+ | | ||
+ | * 9 = dim from 0 to 100% in 15 minutes. | ||
+ | | ||
+ | |||
+ | Note: Make sure the TX port function is set to Light dimming mode (as described in the next chapter) and connect a VE.Direct TX digital output cable to the PWM dim input of your LED driver. | ||
=== Mid-point shift === | === Mid-point shift === | ||
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* Degree of shift = time of sunset (in minutes) +half the duration of night (in minutes) - length of day (in minutes) = 1140m +342m-1440m = 42 minutes | * Degree of shift = time of sunset (in minutes) +half the duration of night (in minutes) - length of day (in minutes) = 1140m +342m-1440m = 42 minutes | ||
- | === Night and day detection | + | === Example configuration |
- | Night/day detection voltage settings can be used to adjust the detection to match the panel configuration. The day detection voltage must be 0.5V higher than the night detection level. The lowest detectable voltage is 11.4V. Set this option to 0 to use the built-in defaults which are: Night = Vpanel< | + | |
- | The default setting is 0 (use built-in default voltages) | + | The selections which have been made on below screen image (click to enlarge) result in this program: |
- | Using the ' | + | *//At sunset// - the light will be switched on for a fixed time |
+ | *//Dim level at sunset// - at Full brilliance (100%) | ||
+ | *//Keep lights on during// - the duration has been set to 1h 0m | ||
+ | *//Dim level at end// - at the end of one hour the brilliance will be reduced to half (50%) | ||
- | === Gradual dimming speed === | + | Also; |
- | The gradual dimming option can be used to slow down the response of the timer program. This is useful when multiple chargers are used in a row, and helps to mask the fact that each timer uses its own detection and the transition moment which will vary from unit to unit. | + | *//At sunrise// - the lighting |
- | + | *//Time before sunrise// - at 1h 0m before sunrise, | |
- | The dimming settings can be adjusted. You can input the number of seconds required to achieve each percentage-point of change | + | *//Dim level// |
- | * 0 = immediate response (gradual dimming disabled) | + | {{:victronconnect: |
- | *A setting of ' | + | |
- | * 9 = dim from 0 to 100% in 15 minutes. | + | |
- | *Setting the dimming speed to 9, for example, slows down the dimming speed to 15 minutes (9 seconds for each percentage point of dimming x 100 percentage points = 900 seconds or 15 minutes. | + | |
- | + | ||
- | Note: Make sure the TX port function is set to Light dimming mode (as described in the next chapter) and connect a VE.Direct TX digital output cable to the PWM dim input of your LED driver. | + | |
==== 4.4 Tx port function ==== | ==== 4.4 Tx port function ==== | ||
This setting defines the function of the Tx pin located inside the VE.Direct connector. Use the [[https:// | This setting defines the function of the Tx pin located inside the VE.Direct connector. Use the [[https:// |
victronconnect/mppt-solarchargers.txt · Last modified: 2021-09-30 07:16 by guystewart